Prediction of Reinforcement Corrosion Level in Concrete Structures
(주)코리아스칼라
- 최초 등록일
- 2016.04.02
- 최종 저작일
- 2006.02
- 5페이지/ 어도비 PDF
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서지정보
ㆍ발행기관 : 단국대학교 리모델링연구소
ㆍ수록지정보 : 리모델링 연구소 논문집 / 4권 / 1호
ㆍ저자명 : Roh, Young-Sook, Cho, Seung-Ho, Chung, Lan
영어 초록
Corrosion level of reinforcing bar is investigated in this study. Seventy-two specimens are designed with 12 different target corrosion levels, two types of reinforcing bars, 3 different concrete covers. Corrosion current density, corrosion potential and ohmic resistance of concrete are measured on these specimens using Gecor device. Metal loss measurements are performed in accordance with ASTM G1-90[1], method C3.5[2], after specimens cracked. The actual corrosion weight loss of the steel reinforcing bars is then compared to the result obtained from the corrosion level measurement. Finally, the estimation of corrosion level can be made using electrical potential and current intensity measured. The experimental results show that the actual corrosion levels of steel bars embedded in concrete are less than the expected corrosion levels. And non-destructive corrosion measurement technique is applicable in order to assess corrosion level in reinforcing bars. This study suggests the relationship between corrosion level and measured electrical potential and measured current intensity.
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